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Green rectangular DDR4 288-pin RDIMM module with black memory chips and gold edge connectors

OWC

OWC 16GB DDR4 2666 ECC Registered RDIMM CL19 1.2V 2Rx8 server RAM

SKU CH-7FC0-G56NZ

16 GB DDR4 2666 ECC registered RDIMM CL19 1.2 V 2Rx8 module for servers, workstations and NAS systems

  • Capacity16GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes
  • 16 GB DDR4 2666 MHz CL19 ECC RDIMM for server reliability
  • 2 V registered design lowers power draw in 24/7 workloads
  • 2Rx8 dual-rank layout boosts memory density per slot
  • JEDEC 288-pin standard ensures drop-in fit for Dell SNPDFK3YC/16G
  • Backward compatible with 2133 MHz and 2400 MHz systems

16GB DDR4 2666 ECC RDIMM for servers

This OWC module delivers 16GB of DDR4 2666MHz memory in a 288-pin ECC registered DIMM format. It operates at CL19 latency and 1.2V with a 2Rx8 rank configuration. The part is built to JEDEC PC4-21300 specifications and matches Dell part numbers SNPDFK3YC/16G and SNPPWR5TC/16G for direct replacement.

Suits servers and workstations needing registered

This memory is designed for server, workstation and NAS platforms that require registered ECC DDR4. It will not work in standard desktop computers that use unbuffered non-ECC modules and cannot be mixed with unbuffered memory. Buyers needing consumer desktop RAM should look elsewhere.

Backward compatible with 2133 and 2400MHz systems

The module runs at 2666MHz but is also compatible with systems rated for 2133MHz and 2400MHz DDR4. This allows deployment in older platforms without replacing all modules at once. No heat spreader is included, relying on standard server airflow for cooling.

Points forts

  • 16 GB DDR4 2666 MHz CL19 ECC RDIMM for server reliability
  • 2 V registered design lowers power draw in 24/7 workloads
  • 2Rx8 dual-rank layout boosts memory density per slot
  • JEDEC 288-pin standard ensures drop-in fit for Dell SNPDFK3YC/16G
  • Backward compatible with 2133 MHz and 2400 MHz systems

Caractéristiques

BrandOWC
Part Number2R6D42R816GB
Capacity16GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
Heat SpreaderNo

Questions sur cet article

Does my server need a registered ECC memory controller to use this 288-pin RDIMM?

Yes, this module is an ECC registered RDIMM and requires a server or workstation platform that supports registered memory; it will not work in standard desktop boards.

Can I install this 2666 MHz module alongside existing 2133 MHz or 2400 MHz DDR4 ECC registered DIMMs?

The module is backward compatible with 2133 MHz and 2400 MHz speeds, so it can run alongside slower registered ECC DIMMs at the lower common frequency.

How can I verify the module is running at 2666 MHz with ECC active after installation?

Check the system BIOS or a hardware monitoring tool; it should report 2666 MT/s (PC4-21300), CL19 timings, 1.2 V and ECC registered status for the installed DIMM.

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